28376272 has 40 divisors (see below), whose sum is σ = 58255200. Its totient is φ = 13352832.

The previous prime is 28376263. The next prime is 28376287. The reversal of 28376272 is 27267382.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81603 + ... + 81949.

It is an arithmetic number, because the mean of its divisors is an integer number (1456380).

Almost surely, 2^28376272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28376272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29127600).

28376272 is an abundant number, since it is smaller than the sum of its proper divisors (29878928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28376272 is a wasteful number, since it uses less digits than its factorization.

28376272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643 (or 637 counting only the distinct ones).

The product of its digits is 56448, while the sum is 37.

The square root of 28376272 is about 5326.9383326635. The cubic root of 28376272 is about 305.0130676118.

The spelling of 28376272 in words is "twenty-eight million, three hundred seventy-six thousand, two hundred seventy-two".